中危 整数溢出或超界折返
CVE编号
CVE-2022-23521利用情况
暂无补丁情况
官方补丁披露时间
2023-01-18漏洞描述
Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | Up to (including) 2.30.6 | |||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.31.0 | Up to (including) 2.31.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.32.0 | Up to (including) 2.32.4 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.33.0 | Up to (including) 2.33.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.34.0 | Up to (including) 2.34.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.35.0 | Up to (including) 2.35.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.36.0 | Up to (including) 2.36.3 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.37.0 | Up to (including) 2.37.4 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | * | From (including) 2.38.0 | Up to (including) 2.38.2 | ||||
| 运行在以下环境 | |||||||||
| 应用 | git-scm | git | 2.39.0 | - | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-190 | 整数溢出或超界折返 |
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